There is no P4P allowed at any event.
If folks tend to arrive as "singles," and leave as "pairs" (or even 3's or 4's) more power to them. Sometimes I feel much like Noah emptying the Ark (yes, I am old as dirt, but not older than dirt!)
Much as I encourage gents to let the new ladies know about events, I encourage ladies to inform gents the same way. Probably works especially well during slack time in sessions.